Case study:River Restoration at Hunworth (River Glaven)

0.00

(0 votes)

To discuss or comment on this case study, please use the discussion page.

Location: 52° 52' 56.13" N, 1° 3' 56.48" E

Edit location

Loading map...

{"format":"googlemaps3","type":"HYBRID","minzoom":false,"maxzoom":false,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"limit":50,"offset":0,"link":"all","sort":[""],"order":[],"headers":"show","mainlabel":"","intro":"","outro":"","searchlabel":"... further results","default":"","import-annotation":false,"width":"auto","height":"400px","centre":false,"title":"","label":"","icon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"visitedicon":"","wmsoverlay":false,"zoom":14,"layers":[],"controls":["pan","zoom","type","scale","streetview","rotate"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"resizable":false,"kmlrezoom":false,"poi":true,"cluster":false,"clustergridsize":60,"clustermaxzoom":20,"clusterzoomonclick":true,"clusteraveragecenter":true,"clusterminsize":2,"imageoverlays":[],"kml":[],"gkml":[""],"searchmarkers":"","fullscreen":false,"scrollwheelzoom":false,"showtitle":false,"hidenamespace":true,"template":"Location map popup","userparam":"","activeicon":"","pagelabel":false,"ajaxcoordproperty":"","ajaxquery":"","locations":[{"text":"\u003Cp\u003E\u003Cbr /\u003E\n\u003C/p\u003E\u003Cp\u003E\u003Cb\u003EProject Title:\u003C/b\u003E River Restoration at Hunworth (River Glaven)\n\u003C/p\u003E\u003Cp\u003E\u003Cb\u003ECountry:\u003C/b\u003E \u003Ca href=\"/wiki/index.php?title=England\" title=\"England\"\u003EEngland\u003C/a\u003E\n\u003C/p\u003E\u003Cp\u003E\u003Cb\u003EProject Status:\u003C/b\u003E Complete\n\u003C/p\u003E\u003Cp\u003E\u003Cb\u003EThemes:\u003C/b\u003E Land use management - agriculture\n\u003C/p\u003E\u003Cp\u003E\u003Cbr /\u003E\n\u003C/p\u003E","title":"River Restoration at Hunworth (River Glaven)","link":"","lat":52.882258497901,"lon":1.0656899213791,"icon":"/wiki/images/a/af/Red_marker.png"}]}

Left click to look around in the map, and use the wheel of your mouse to zoom in and out.

Project overview

Edit project overview

Status	Complete
Project web site	http://http://www.wildtrout.org/content/river-glaven-hunworth
Themes	Fisheries, Habitat and biodiversity, Hydromorphology, Land use management - agriculture
Country	England
Main contact forename	Ian
Main contact surname	Shepperd
Main contact user ID
Contact organisation	River Glaven Conservation Group
Contact organisation web site	http://http://www.riverglaven.co.uk/
Partner organisations	Environment Agency, Centre for Fisheries and Aquaculture Science, Wild Trout Trust
Parent multi-site project
This is a parent project encompassing the following projects	No

Looking downstream from the dismantled railway

Project summary

Edit project overview to modify the project summary.

The river restoration work carried out on the River Glaven at Hunworth was done with a view to returning the river to a more natural state. The scheme involved a number of organisations, including the Environment Agency, the Wild Trout Trust, the River Glaven Conservation Group and the Centre for Environment, Fisheries and Aquaculture. A variety of techniques were employed, including channel reprofiling, the reintroduction of gravels and the installation of cattle drinks.

Since the works were completed in 2010 the River Glaven (Waterbody ID: GB105034055780) has improved from Moderate ecological status (as designated in the Anglian River Basin Management Plan) to Good ecological status, with specific improvements in macroinvertebrate and fish populations.

Monitoring surveys and results

This case study hasn’t got any Monitoring survey and results, you can add some by editing the project overview.

Lessons learnt

This case study hasn’t got any lessons learnt, you can add some by editing the project overview.

Catchment and subcatchment

Select a catchment/subcatchment

Edit the catchment and subcatchment details
(affects all case studies in this subcatchment)

Catchment

River basin district	Anglian
River basin	North Norfolk

Subcatchment

River name	Glaven
Area category	10 - 100 km²
Area (km2)
Maximum altitude category	100 - 200 m
Maximum altitude (m)	103103 m <br />0.103 km <br />10,300 cm <br />
Dominant geology	Calcareous
Ecoregion	Great Britain
Dominant land cover	Arable and Horticulture
Waterbody ID	GB105034055780

Other case studies in this subcatchment: Nine Chalk Rivers Project - Glaven Catchment, River Glaven conservation group

Site

Edit site

Name	Hunworth
WFD water body codes	GB105034055780
WFD (national) typology	Low, Small, Calcareous
WFD water body name	Glaven
Pre-project morphology	Straightened
Reference morphology	Sinuous
Desired post project morphology
Heavily modified water body	Yes
National/international site designation
Local/regional site designations
Protected species present	Yes
Invasive species present	Yes
Species of interest
Dominant hydrology	Groundwater
Dominant substrate	Gravel
River corridor land use	Intensive agriculture (arable)
Average bankfull channel width category	5 - 10 m
Average bankfull channel width (m)
Average bankfull channel depth category	0.5 - 2 m
Average bankfull channel depth (m)
Mean discharge category	0.1 - 1.0 m³/s
Mean annual discharge (m3/s)
Average channel gradient category	Less than 0.001
Average channel gradient
Average unit stream power (W/m2)

Project background

Edit project background

Reach length directly affected (m)	320320 m <br />0.32 km <br />32,000 cm <br />
Project started	2009/03/01
Works started	2013/08/02
Works completed	2010/08/18
Project completed	2011/01/01
Total cost category	10 - 50 k€
Total cost (k€)
Benefit to cost ratio
Funding sources

Cost for project phases

Phase	cost category	cost exact (k€)	Lead organisation	Contact forename	Contact surname
Investigation and design
Stakeholder engagement and communication
Works and works supervision
Post-project management and maintenance
Monitoring

Reasons for river restoration

Edit reasons for restoration

Mitigation of a pressure	l
Hydromorphology	Channel pattern/planform, Flow velocities, Quantity & dynamics of flow, Freshwater flow regime, Substrate conditions, Floodplain connectivity
Biology	Fish, Invertebrates, Macrophytes, Diatoms
Physico-chemical	Oxygen balance, Dissolved Oxygen
Other reasons for the project

Measures

Edit Measures

Structural measures
Bank/bed modifications	Channel reprofiling, reintroducing gravel, installation of cattle drinks
Floodplain / River corridor	Removal of embankments
Planform / Channel pattern	Increase in sinuosity
Other
Non-structural measures
Management interventions	Reduced maintenance
Social measures (incl. engagement)
Other

Monitoring

Hydromorphological quality elements

Edit Hydromorphological
quality elements

Element	When monitored		Type of monitoring		Control site used	Result
	Before measures	After measures	Qualitative	Quantitative

Biological quality elements

Edit biological
quality elements

Element	When monitored		Type of monitoring		Control site used	Result
	Before measures	After measures	Qualitative	Quantitative

Physico-chemical quality elements

Edit Physico-chemical
quality elements

Element	When monitored		Type of monitoring		Control site used	Result
	Before measures	After measures	Qualitative	Quantitative

Any other monitoring, e.g. social, economic

Edit Other responses

Element	When monitored		Type of monitoring		Control site used	Result
	Before measures	After measures	Qualitative	Quantitative

Monitoring documents

Upload monitoring documents

Image gallery

Edit Image gallery

Channel sinuosity was increased as a result of the scheme

The functioning of the gauging station has been comprimised by the restoration works

Additional documents and videos

Upload additional documents

Additional links and references

Edit links and references

Link	Description

Supplementary Information

Edit Supplementary Information